1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/** |
4
|
|
|
* This file is part of Lenius Basket, a PHP package to handle |
5
|
|
|
* your shopping basket. |
6
|
|
|
* |
7
|
|
|
* Copyright (c) 2013 Lenius. |
8
|
|
|
* http://github.com/lenius/basket |
9
|
|
|
* |
10
|
|
|
* For the full copyright and license information, please view the LICENSE |
11
|
|
|
* file that was distributed with this source code. |
12
|
|
|
* |
13
|
|
|
* @author Carsten Jonstrup<[email protected]> |
14
|
|
|
* @copyright 2013 Lenius. |
15
|
|
|
* |
16
|
|
|
* @version dev |
17
|
|
|
* |
18
|
|
|
* @link http://github.com/lenius/basket |
19
|
|
|
*/ |
20
|
|
|
namespace Lenius\Basket; |
21
|
|
|
|
22
|
|
|
use InvalidArgumentException; |
23
|
|
|
|
24
|
|
|
class Basket |
25
|
|
|
{ |
26
|
|
|
protected $id; |
27
|
|
|
|
28
|
|
|
protected $identifier; |
29
|
|
|
protected $store; |
30
|
|
|
|
31
|
|
|
protected $currency; |
32
|
|
|
|
33
|
|
|
protected $requiredParams = [ |
34
|
|
|
'id', |
35
|
|
|
'name', |
36
|
|
|
'quantity', |
37
|
|
|
'price', |
38
|
|
|
'weight', |
39
|
|
|
]; |
40
|
|
|
|
41
|
|
|
/** |
42
|
|
|
* Basket constructor. |
43
|
|
|
* |
44
|
|
|
* @param StorageInterface $store The interface for storing the cart data |
45
|
|
|
* @param IdentifierInterface $identifier The interface for storing the identifier |
46
|
|
|
*/ |
47
|
14 |
|
public function __construct(StorageInterface $store, IdentifierInterface $identifier) |
48
|
1 |
|
{ |
49
|
14 |
|
$this->store = $store; |
50
|
14 |
|
$this->identifier = $identifier; |
51
|
|
|
|
52
|
|
|
// Generate/retrieve identifier |
53
|
14 |
|
$this->id = $this->identifier->get(); |
54
|
|
|
|
55
|
|
|
// Restore the cart from a saved version |
56
|
14 |
|
if (method_exists($this->store, 'restore')) { |
57
|
|
|
$this->store->restore(); |
|
|
|
|
58
|
|
|
} |
59
|
|
|
|
60
|
|
|
// Let our storage class know which cart we're talking about |
61
|
14 |
|
$this->store->setIdentifier($this->id); |
62
|
14 |
|
} |
63
|
|
|
|
64
|
|
|
/** |
65
|
|
|
* Retrieve the basket contents. |
66
|
|
|
* |
67
|
|
|
* @param bool $asArray |
68
|
|
|
* |
69
|
|
|
* @return array An array of Item objects |
70
|
|
|
*/ |
71
|
9 |
|
public function &contents($asArray = false) |
72
|
|
|
{ |
73
|
9 |
|
return $this->store->data($asArray); |
74
|
|
|
} |
75
|
|
|
|
76
|
|
|
/** |
77
|
|
|
* Insert an item into the basket. |
78
|
|
|
* |
79
|
|
|
* @param array $item An array of item data |
80
|
|
|
* |
81
|
|
|
* @return string A unique item identifier |
82
|
|
|
*/ |
83
|
14 |
|
public function insert(array $item) |
84
|
|
|
{ |
85
|
14 |
|
$this->checkArgs($item); |
86
|
|
|
|
87
|
14 |
|
$itemIdentifier = $this->createItemIdentifier($item); |
88
|
|
|
|
89
|
14 |
|
if ($this->has($itemIdentifier)) { |
90
|
1 |
|
$item['quantity'] = $this->item($itemIdentifier)->quantity + $item['quantity']; |
|
|
|
|
91
|
6 |
|
$this->update($itemIdentifier, $item); |
92
|
|
|
|
93
|
1 |
|
return $itemIdentifier; |
94
|
|
|
} |
95
|
|
|
|
96
|
14 |
|
$item = new Item($itemIdentifier, $item, $this->store); |
97
|
|
|
|
98
|
14 |
|
$this->store->insertUpdate($item); |
99
|
|
|
|
100
|
14 |
|
return $itemIdentifier; |
101
|
|
|
} |
102
|
|
|
|
103
|
|
|
/** |
104
|
|
|
* Update an item. |
105
|
|
|
* |
106
|
|
|
* @param string $itemIdentifier The unique item identifier |
107
|
|
|
* @param string|int|array $key The key to update, or an array of key-value pairs |
108
|
|
|
* @param mixed $value The value to set $key to |
109
|
|
|
* |
110
|
|
|
* @return void |
111
|
|
|
*/ |
112
|
2 |
|
public function update($itemIdentifier, $key, $value = null) |
113
|
|
|
{ |
114
|
2 |
|
foreach ($this->contents() as $item) { |
115
|
2 |
|
if ($item->identifier == $itemIdentifier) { |
116
|
2 |
|
$item->update($key, $value); |
117
|
2 |
|
break; |
118
|
|
|
} |
119
|
2 |
|
} |
120
|
2 |
|
} |
121
|
|
|
|
122
|
|
|
/** |
123
|
|
|
* Remove an item from the basket. |
124
|
|
|
* |
125
|
|
|
* @param string $identifier Unique item identifier |
126
|
|
|
* |
127
|
|
|
* @return void |
128
|
|
|
*/ |
129
|
1 |
|
public function remove($identifier) |
130
|
|
|
{ |
131
|
1 |
|
$this->store->remove($identifier); |
132
|
1 |
|
} |
133
|
|
|
|
134
|
|
|
/** |
135
|
|
|
* Destroy/empty the basket. |
136
|
|
|
* |
137
|
|
|
* @return void |
138
|
|
|
*/ |
139
|
14 |
|
public function destroy() |
140
|
|
|
{ |
141
|
14 |
|
$this->store->destroy(); |
142
|
14 |
|
} |
143
|
|
|
|
144
|
|
|
/** |
145
|
|
|
* Check if the basket has a specific item. |
146
|
|
|
* |
147
|
|
|
* @param string $itemIdentifier The unique item identifier |
148
|
|
|
* |
149
|
|
|
* @return bool Yes or no? |
150
|
|
|
*/ |
151
|
14 |
|
public function has($itemIdentifier) |
152
|
|
|
{ |
153
|
14 |
|
return $this->store->has($itemIdentifier); |
154
|
|
|
} |
155
|
|
|
|
156
|
|
|
/** |
157
|
|
|
* Return a specific item object by identifier. |
158
|
|
|
* |
159
|
|
|
* @param string $itemIdentifier The unique item identifier |
160
|
|
|
* |
161
|
|
|
* @return Item Item object |
162
|
|
|
*/ |
163
|
6 |
|
public function item($itemIdentifier) |
164
|
|
|
{ |
165
|
6 |
|
return $this->store->item($itemIdentifier); |
166
|
|
|
} |
167
|
|
|
|
168
|
|
|
/** |
169
|
|
|
* Returns the first occurance of an item with a given id. |
170
|
|
|
* |
171
|
|
|
* @param string $id The item id |
172
|
|
|
* |
173
|
|
|
* @return Item Item object |
174
|
|
|
*/ |
175
|
1 |
|
public function find($id) |
176
|
|
|
{ |
177
|
1 |
|
return $this->store->find($id); |
178
|
|
|
} |
179
|
|
|
|
180
|
|
|
/** |
181
|
|
|
* The total tax value for the basket. |
182
|
|
|
* |
183
|
|
|
* @return float The total tax value |
184
|
|
|
*/ |
185
|
|
|
public function tax() |
186
|
|
|
{ |
187
|
|
|
$total = 0; |
188
|
|
|
|
189
|
|
|
foreach ($this->contents() as $item) { |
190
|
|
|
$total += (float) $item->tax(); |
191
|
|
|
} |
192
|
|
|
|
193
|
|
|
return $total; |
194
|
|
|
} |
195
|
|
|
|
196
|
|
|
/** |
197
|
|
|
* The total weight value for the basket. |
198
|
|
|
* |
199
|
|
|
* @return float The total weight value |
200
|
|
|
*/ |
201
|
|
|
public function weight() |
202
|
|
|
{ |
203
|
|
|
$weight = 0; |
204
|
|
|
|
205
|
|
|
foreach ($this->contents() as $item) { |
206
|
|
|
$weight += (float) $item->weight(); |
207
|
|
|
} |
208
|
|
|
|
209
|
|
|
return $weight; |
210
|
|
|
} |
211
|
|
|
|
212
|
|
|
/** |
213
|
|
|
* The total value of the basket. |
214
|
|
|
* |
215
|
|
|
* @param bool $includeTax Include tax on the total? |
216
|
|
|
* |
217
|
|
|
* @return float The total basket value |
218
|
|
|
*/ |
219
|
3 |
|
public function total($includeTax = true) |
220
|
|
|
{ |
221
|
3 |
|
$total = 0; |
222
|
|
|
|
223
|
3 |
|
foreach ($this->contents() as $item) { |
224
|
3 |
|
$total += (float) $item->total($includeTax); |
225
|
3 |
|
} |
226
|
|
|
|
227
|
3 |
|
return (float) $total; |
228
|
|
|
} |
229
|
|
|
|
230
|
|
|
/** |
231
|
|
|
* The total number of items in the basket. |
232
|
|
|
* |
233
|
|
|
* @param bool $unique Just return unique items? |
234
|
|
|
* |
235
|
|
|
* @return int Total number of items |
236
|
|
|
*/ |
237
|
1 |
|
public function totalItems($unique = false) |
238
|
|
|
{ |
239
|
1 |
|
$total = 0; |
240
|
|
|
|
241
|
1 |
|
foreach ($this->contents() as $item) { |
242
|
1 |
|
$total += $unique ? 1 : $item->quantity; |
243
|
1 |
|
} |
244
|
|
|
|
245
|
1 |
|
return $total; |
246
|
|
|
} |
247
|
|
|
|
248
|
|
|
/** |
249
|
|
|
* Set the basket identifier, useful if restoring a saved basket. |
250
|
|
|
* |
251
|
|
|
* @param mixed The identifier |
252
|
|
|
* |
253
|
|
|
* @return void |
254
|
|
|
*/ |
255
|
|
|
public function setIdentifier($identifier) |
256
|
|
|
{ |
257
|
|
|
$this->store->setIdentifier($identifier); |
258
|
|
|
} |
259
|
|
|
|
260
|
|
|
/** |
261
|
|
|
* Create a unique item identifier. |
262
|
|
|
* |
263
|
|
|
* @param array $item An array of item data |
264
|
|
|
* |
265
|
|
|
* @return string An md5 hash of item |
266
|
|
|
*/ |
267
|
14 |
|
protected function createItemIdentifier(array $item) |
268
|
|
|
{ |
269
|
14 |
|
if (!array_key_exists('options', $item)) { |
270
|
13 |
|
$item['options'] = []; |
271
|
13 |
|
} |
272
|
|
|
|
273
|
14 |
|
ksort($item['options']); |
274
|
|
|
|
275
|
14 |
|
return md5($item['id'].serialize($item['options'])); |
276
|
|
|
} |
277
|
|
|
|
278
|
|
|
/** |
279
|
|
|
* Check if a basket item has the required parameters. |
280
|
|
|
* |
281
|
|
|
* @param array $item An array of item data |
282
|
|
|
* |
283
|
|
|
* @return void |
284
|
|
|
*/ |
285
|
14 |
|
protected function checkArgs(array $item) |
286
|
|
|
{ |
287
|
14 |
|
foreach ($this->requiredParams as $param) { |
288
|
14 |
|
if (!array_key_exists($param, $item)) { |
289
|
|
|
throw new InvalidArgumentException("The '{$param}' field is required"); |
290
|
|
|
} |
291
|
14 |
|
} |
292
|
14 |
|
} |
293
|
|
|
} |
294
|
|
|
|
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: